/* Copyright (C) 2000 MySQL AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#include "mysys_priv.h"

/* Seek to position in file */
/*ARGSUSED*/

my_off_t my_seek(File fd, my_off_t pos, int whence, myf MyFlags __attribute__((unused)))
{
  reg1 os_off_t newpos;
  DBUG_ENTER("my_seek");
  DBUG_PRINT("my", ("Fd: %d  Hpos: %lu  Pos: %lu  Whence: %d  MyFlags: %d", fd, (ulong)(((ulonglong)pos) >> 32),
                    (ulong)pos, whence, MyFlags));
  DBUG_ASSERT(pos != MY_FILEPOS_ERROR); /* safety check */

  newpos = lseek(fd, pos, whence);
  if (newpos == (os_off_t)-1)
  {
    my_errno = errno;
    DBUG_PRINT("error", ("lseek: %lu, errno: %d", newpos, errno));
    DBUG_RETURN(MY_FILEPOS_ERROR);
  }
  if ((my_off_t)newpos != pos)
  {
    DBUG_PRINT("exit", ("pos: %lu", (ulong)newpos));
  }
  DBUG_RETURN((my_off_t)newpos);
} /* my_seek */

/* Tell current position of file */
/* ARGSUSED */

my_off_t my_tell(File fd, myf MyFlags __attribute__((unused)))
{
  os_off_t pos;
  DBUG_ENTER("my_tell");
  DBUG_PRINT("my", ("Fd: %d  MyFlags: %d", fd, MyFlags));
#ifdef HAVE_TELL
  pos = tell(fd);
#else
  pos = lseek(fd, 0L, MY_SEEK_CUR);
#endif
  if (pos == (os_off_t)-1)
    my_errno = errno;
  DBUG_PRINT("exit", ("pos: %lu", (ulong)pos));
  DBUG_RETURN((my_off_t)pos);
} /* my_tell */
